PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51021-2Cap,case Air Vent F

Fluid Conditioning Products, Inc. · NSN 1650-00-034-7571 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-034-7571 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-034-7571. Primary manufacturer part number: 51021-2.
Features
  • Cap,case Air Vent F — FSC 1650
  • 1 verified cross-reference
  • Primary manufacturer: Fluid Conditioning Products, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cap,case Air Vent F, cataloged under National Stock Number 1650-00-034-7571, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Fluid Conditioning Products, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCap,case Air Vent F
FSC / FSG1650 — No Item Name Available (FSG 16)
ManufacturersFluid Conditioning Products, Inc. (CAGE 94592)
Technical Specifications
ParameterValue
NSN1650-00-034-7571
Primary Part Number51021-2
Item NameCap,case Air Vent F
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerFluid Conditioning Products, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-183-6309510212 INTERCHANGEABLE
Washer,flat
Aar Allen Services, Inc Dba Aar Component Services Wellington
5305-00-993-0191MS35206-212 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4730-01-293-69505102-12 INTERCHANGEABLE
Strainer Element,sediment
Wisco Products Inc
3040-01-339-3669510212G2 INTERCHANGEABLE
Bell Crank
Aimtron Systems, Llc
5930-01-581-0996513505 INTERCHANGEABLE
Switch Section,rotary
Alliance Laundry Systems Llc
5140-01-628-9410 INTERCHANGEABLE
Bag,tool
Cross-Reference Index
Part NumberManufacturer
51021-2 PRIMARY Fluid Conditioning Products, Inc. (USA)
Related Parts
5310-00-183-6309INTERCHANGEABLE
WASHER,FLAT
510212
5305-00-993-0191INTERCHANGEABLE
SCREW,MACHINE
MS35206-212
4730-01-293-6950INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
5102-12
3040-01-339-3669INTERCHANGEABLE
BELL CRANK
510212G2
5930-01-581-0996INTERCHANGEABLE
SWITCH SECTION,ROTARY
513505
5140-01-628-9410INTERCHANGEABLE
BAG,TOOL

Frequently Asked Questions

What is NSN 1650-00-034-7571?

NSN 1650-00-034-7571 is a Cap,case Air Vent F, manufactured by Fluid Conditioning Products, Inc., classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-034-7571?

NSN 1650-00-034-7571 has 1 cross-referenced part number: 51021-2 (Fluid Conditioning Products, Inc.).

What NSN replaces 1650-00-034-7571?

There are 6 known substitutes for 1650-00-034-7571: 5310-00-183-6309, 5305-00-993-0191, 4730-01-293-6950 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com